Core-rod



(No Model.)

G. P. RENO.

GORE ROD.

No. 353,159. Patented NovQZS, 1886.

.dttorney UNITED STATES PATENT OFFICE.

eEoneEr. RENO, or LOUISVILLE, KENTUCKY.

SPECIFICATION forming part of Letters Patent No. 353,159, dated November 23, 1886.

Application filed June 3, 1886. Serial No. 201,053. No model.)

T all whom it may concern.-

Be it known that I, GEORGE P. RENO, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Core-Rods; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or the drawings, and pointed out in the claims.

By the hereinafter-described construction the cores of straight pipes of, three-way coupling-pieces and of four-way couplingpieces can be made with equal facility.

Referring by letter to the accompanying drawings, A designates the body or shank of the core-bar, having the enlarged central por tion, a, in which are the circular recesses a, situated on sides opposite each other and 011 the bulging or outstanding parts of said enlarged portions. B are plates secured over said recesses, and having the key-hole shapedslots b I), as shown. The arms of the shank A are provided with the longitudinal passages or recesses C 0, each V-shaped in cross-section.

G C are longitudinal slots entering the said passages or rec SGS on the same side of the arms of the shanks, the said side being between those in which the recesses a are made.

D is one of the detachable arms of the corerod, having on its end the projection D, the contour of which corresponds to that of each of the slots 22. The shank (Z of said projection isjust about as long as the plate B is thick, so that the projection can be passed through one of the slots 1), and by turning the arm on its axis the projection will turn in the recess a, and the arm will lock to the shank. There may be two of these arms, if desired, one to lock to each side of the shank. Each arm D is provided with a longitudinal passage or re cess, E, similar to the recess 0, and a longitudinal slot, E, similar to the slots 0. The slots 0 and E each have their outer endenlarged at c and 6, respectively, as shown.

F F are semicircular plates, notched centrally on their straight edges to fit and ride upon the arms of theshank A and the arm or arms D. Each of the plates F have standing from the bottom of said notch f a projection, f, provided with an arrow headed or V- shaped end, f which fits snugly in one of the recesses G or E. By passing the said end f through the wide part of the slot C or E and slipping the plate inward on i the arm the shank of the projection will lock upon the arm, as shown in Fig. 3.

In making the core the plates are locked on, as described, and one or both arms locked to the shank. The device is then set in one half of a core-box of proper shapethat is, a box in which the semicircular plates F will rest with their peripheries against the inner surfaces of the arms of said box, the interior of said arms being semicircular in cross-section.

The sand is then packed in the box and around the rod. \Vhen the plates are removed, the shank and arm or arms are lifted out and reversed and the other half of the core made in a similar manner. The two halves of the core are then united by any ordinary means.

By using the shank only,a core for a straight piece of piping is formed. A core for a threeway couplingpiece may be formed by attaching one arm to the shanks, and a core for a four-way couplingpiece by attaching both arms thereto. The projections f are in practice re-enforced to prevent them from breaking away from their respective plates.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-

1. The combination of the shank provided with the recesses C C, Vshaped in cross-section, and the slots GG, entering said recesses, and provided with the enlarged outer ends, 0 c, the arm looking to the shank by means substantially as described, and provided with a recess, E, and slot E, respectively similar to the rec essO and slot 0, and the plates F, having the notches f, projection f, and V-shaped IOO headf on said projection, to lock in the recesses of the shank or arms, substantially as specified.

2. The combination of the shank provided with the recesses a and O, and slots 0, having enlarged outer ends, the plates 13, having the slots 12, the detachable arms D, having the projections D, and provided with the recesses E and slots E, having enlarged outer ends, and the plates F, provided with the notches f and projectionsf, having the V-shaped heads to engage the recesses (J and E, substantially as specified.

- 3. A core-rod consisting of a shank having V-shaped recesses and slots forming entrances I 5 to said recesses, and plates having V-shaped heads and reduced portion f substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE r. RENO.

WVitnesses:

SIMON FROMHOLTZ, THOMAS P. PARRENT. 

